1Lack of clarity; a blur—something whose contours or details are indistinct or fuzzy.
写真が手ぶれで不鮮明になってしまった。
The photo became blurred because of camera shake.
古い映像は色も画質も不鮮明だ。
Old footage has indistinct colors and quality.
2Describing something that is not sharp or clear—visually or conceptually indistinct.
彼の説明は不鮮明で、結論がわかりにくかった。
His explanation was unclear, so the conclusion was hard to understand.
モニターの設定を直さないと文字が不鮮明に見える。
If you don't adjust the monitor settings, the text looks blurred.